Already had to convert vectors made in CMYK ignorant programs, like, say, inkscape and wanted to print them with a predefined and fixed palette ? Illustrator scripting capabilities saves you hours of repetitive work. First of all, credits where credits are due, this script is based on Randomize Colors, by John Wundes .
This script works on solid fills and strokes, on gradients and on vectorized text (could not succeed to make it work on regular text, any hint is welcome). It changes predefined CMYK values to other ones. The match on the predefined value has a certain tolerance (default 1%). A color which is not matched is turned to a highly visible red, letting you know where something went wrong.
This complete javascript documentation for illustrator unveils of the secrets of the internal form of illustrator, and in many ways it's cleaner than the clumsy Illustrator GUI.
There are 3 parts in this script:
- 2 arrays containning the source palette and the destination palette. Colors with identical indexes will be swapped.
- An internal form walker, working on the current selection, and calling itself recursively while walking the internal form. When we reach the final colors, the swap is realized.
- 2 Functions to find the destination color from object color and the correspondance tables.
And now, here is the script:
//Stick to CMYK Palette
//JS code modifications (c) Aubanel MONNIER
//http://un.regne.net
//Original was:
//Randomize Colors
//JS code (c) by John Wundes
// johnwun@aol.com
// www.wundes.com
//////////////////////////////////////////////////////////////////
len = app.activeDocument.selection.length;
gradAlert = 0;
strokes = false;
epsilon = 1; //1% of error margin
palette=[
0, 0, 0, 0, //blanc
87.06, 19.61, 0, 0, //Bleu electrique
23.92, 3.53, 1.18, 0, //Bleu Ciel
94.90,60.78,34.90,29.019,//Pétrole
1.96, 59.60, 89.01, 0, //Orange tricycle
1.96, 29.8, 41.57, 0, //Peche
28.62, 67.84, 94.11, 16.07,//Fruit Pourri
58.03, 3.13, 100, 0.39, //Vert Tendre
20.39, 0, 52.54, 0, //Vert Tilleul
72.54, 29.01, 99.21, 13.72, //Vert Sapin
37.64,25.09,0,0, //Mauve
10.59,5.49,1.57,0, //Lavande
83.92,66.27,0,0, //Nuit
5.88, 17.64, 27.45, 0.78, //Chene
23.52, 43.92, 78.82, 9.80, //Beige
43.92, 65.49, 94.90, 57.25, //Chocolat
2.35,13.72,92.54,0.39, //Jaune d'or
3.52,3.92,41.96,0, //Jaune pale
39.99,39.99,97.64,26.66, //Caca d'oie
1.17, 96.07, 84.70, 0, //Rouge Camion
2.35, 14.50, 1.96, 0, //Rose pale
37.25, 83.92, 92.54, 36.07,//Bordeaux
9.41, 6.27, 4.71, 0.39, //Gris10
18.82,12.94,10.2,1.18, //Gris20
27.06, 19.22, 16.08, 3.14, //Gris30
35.29,25.49,22.35,6.67, //Gris40
42.75,31.37, 28.63,12.94, //Gris50
49.02,36.47,34.51,21.96, //Gris60
56.08,42.35,41.57,32.94, //Gris70
62.35,48.63,48.63,47.84, //Gris80
68.63,54.9,56.08, 69.41, //Gris90
0, 0, 0, 100, //Noir
];
swapTo=[
0, 0, 0, 0, //blanc
91, 43, 0, 0,//Bleu electrique
25, 10, 0, 0, //Bleu Ciel
91,43,0,70,//Pétrole
0, 60, 94, 0, //Orange tricycle
0, 30, 50, 0, //Peche
0, 60, 100, 40,//Fruit Pourri
40,0,100,30, //Vert Tendre
20,0,50,0, //Vert Tilleul
40, 0, 100, 60, //Vert Sapin
34,30.5,0,6, //Mauve
11.5,8.5,0,0, //Lavande
69,65,0,30.5, //Nuit
0, 15, 30.5, 6, //Chene
0, 24, 76, 30.5, //Beige
0, 51, 100, 76, //Chocolat
0,15,94,0,//Jaune d'or
0,5,43,0, //Jaune pale
0,18.5,100,56, //Caca d'oie
0, 100, 91, 0, //Rouge Camion
0, 15, 6, 0, //Rose pale
0, 76, 76, 60,//Bordeaux
0, 0, 0, 10, //Gris10
0, 0, 0, 20, //Gris20
0, 0, 0, 30, //Gris30
0, 0, 0, 40, //Gris40
0, 0, 0, 50, //Gris50
0, 0, 0, 60, //Gris60
0, 0, 0, 70, //Gris70
0, 0, 0, 80, //Gris80
0, 0, 0, 90, //Gris90
0, 0, 0, 100, //Noir
];
defaultColor=0,100,100,0;
log='';
if (len == 0) {
alert("Please select one or more objects. Grouped objects will not be affected.");
} else if(app.activeDocument.documentColorSpace == "DocumentColorSpace.RGB") {
alert("Document is in RGB Mode ! Switch it to CMYK.");
} else {
ob = app.activeDocument.selection;
for (j=0; j<len; j++) {
changeObjectPalette(obj);
}
if (log =='') log='Done !'
alert (log);
}
function changeObjectPalette(obj){
//uncomment to debug
//alert(obj.typename);
//only owrks on vectorized text
if (obj.typename=='CMYKColor'){
//a cmyk color, find the best replacement
swapColorToNearest(obj);
}
if (obj.typename=='GroupItem'){
//a group, recursive call on all page items
for (l=0; l <obj.pageItems.length; l++ ) {
changeObjectPalette(obj.pageItemsl);
}
}
if (obj.typename=='TextFrame') {
//Mmmh ,some text
//recurse on the text Range
//changeObjectPalette(obj.textRange);
changeObjectPalette(obj.textPath);
//alert(introspect(obj));
}
if (obj.typename=='TextPath') {
changeObjectPalette(obj.fillColor);
}
if (obj.typename=='TextRange') {
//A text range. Get all the inner character style (style pere char)and the paragraph styles
for (m=0; m <obj.characterStyles.length; m++ ) {
changeObjectPalette(obj.characterStylesm);
}
for (m=0; m <obj.paragraphStyles.length; m++ ) {
changeObjectPalette(obj.paragraphStylesm);
}
}
if (obj.typename=='CharacterStyle') {
//recurse on character attributes
changeObjectPalette(obj.characterAttributes);
}
if (obj.typename=='ParagraphStyle') {
//recurse on character attributes
changeObjectPalette(obj.characterAttributes);
}
if (obj.typename=='CharacterAttributes') {
//get colors
changeObjectPalette(obj.fillColor);
changeObjectPalette(obj.strokeColor);
}
if (obj.typename=='GradientColor') {
changeObjectPalette(obj.gradient);
}
if (obj.typename=='Gradient') {
nbStops= obj.gradientStops.length;
for (k=0; k<nbStops; k++) {
changeObjectPalette(obj.gradientStopsk);
}
}
if (obj.typename=='GradientStop') {
changeObjectPalette(obj.color);
}
if (obj.filled == true) {
changeObjectPalette(obj.fillColor);
}
if (obj.stroked == true) {
changeObjectPalette(obj.strokeColor);
}
if (obj.typename=='CompoundPathItem') {
for (m=0; m <obj.pathItems.length; m++ ) {
changeObjectPalette(obj.pathItemsm);
}
}
}
function introspect(obj){
property_list='';
for (prop in obj)
property_list += prop +"\n";
return property_list;
}
function swapColorToNearest(c){
swap = findNearColor(c);
c.cyan = swap0;
c.magenta = swap1;
c.yellow = swap2;
c.black = swap3;
}
function findNearColor(c){
for (i=0; i < palette.length ; i++) {
if
(nearColor(c.cyan,c.magenta,c.yellow,c.black,palettei0, palettei1, palettei2, palettei3)
||
nearColor(c.cyan,c.magenta,c.yellow,c.black,swapToi0, swapToi1, swapToi2, swapToi3)
)
{
return swapToi;
}
}
log+='No match for C '+c.cyan+' M '+c.magenta+' Y '+c.yellow+' K '+c.black+"\n";
return defaultColor;
}
function e(s,r){
return (s >= (r-epsilon)) && (s <= (r+epsilon));
}
function nearColor(cs, ms, ys, ks, cr, mr, yr, kr){
return e(cs, cr) && e(ms, mr) && e(ys, yr) && e (ks, kr);
}
To install it, drop it in the C:\Program Files\Adobe\Illustrator CS\Paramètres prédéfinis\Scripts directory, it is available from the File->Scripts menu.
UPDATE: modified the funtion findNearColor to make the colors already in the destination palette not beeing swapped.
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